Abstract: An antenna element for use in an antenna assembly is provided. The antenna element includes a cylindrical tube. The antenna element also includes a plurality of fingers, each finger having a first end that is connected to the cylindrical tube and a second end that is free. Each finger protrudes inward from a wall of the cylindrical tube. The free end of each finger has an aperture configured to allow the finger to be soldered to a pipe disposed through a generally circular opening. An antenna assembly having at least one antenna element is also provided.

Abstract: An integrated resonator and dipole for generation of high power directional RF energy.

Abstract: There is provided a dipole antenna. The dipole antenna according to embodiments of the present invention includes: a substrate having a predetermined dielectric constant; and an antenna unit including at least one pair of electrodes and feed lines disposed on one surface of the substrate, wherein the electrodes receive current through the feed lines to generate a signal radiated in a direction in parallel with the one surface of the substrate.

Abstract: A unidirectional wireless antenna with a front-to-back ratio of 20 dB comprises a loop antenna and a dipole antenna interconnected by a metallic element and printed on a printed circuit board. The antenna is small in size but provides good unidirectional transmission.

Abstract: An antenna (100) comprising a first pole portion (20), a first helical portion (30), a second pole portion (40) and a second helical portion (50), each of which connects the next in turn along a line, said second helical portion (50) having a plurality of cylindrical whorls, wherein the second helical portion is coated with metal (60) so that the whorls are connected to a neighbor one by the metal (60).

Abstract: A forty five degree polarized antenna having grid layers wrapped around a vertically polarized dipole, or grids wrapped internally or externally around a vertically polarized bicone antenna, and having grid segments separated by capacitors that can attenuate, remove or minimize circumferential resonances that appear due to the presence of the grids and reduce the nulling effects from reflections from the innermost grid layer.

Abstract: An antenna module for a portable electronic device includes a loop portion, a dipole portion, a feeding end portion and a grounding end portion. The dipole portion is positioned in the loop portion and connected to the loop portion. The feeding end portion and the grounding end portion are connected to the loop portion.

Abstract: A broadband antenna includes a first antenna element having first and second ends spaced apart by a surface thereof. A second antenna element is substantially co-planar with the first antenna element, the second antenna element having first and second ends spaced apart by a surface thereof. The first end of the second antenna element is spaced apart from the second end of the first antenna element by a first air gap. A conductive structure is spaced apart from the first end of the first antenna element by a second air gap, the conductive structure being configured to provide for structural excitation of the antenna over a lower frequency range of an available broadband antenna bandwidth, such as may be a continuous operating bandwidth.

Abstract: Antenna elements operable to radiate different patterns are provided. A particular apparatus includes a first antenna element having a plurality of radiating elements. Each of the radiating elements includes a first member having a first end and a second end. The first end is coupled to an antenna interface and the second end extends a length of the first member from the first end. Each of the radiating elements further includes a second member having a third end and a fourth end. The third end is electrically coupled to the first member at a point partway along the length of the first member. The fourth end extends away from the first member. When a first radiating element is radiating in the presence of a second radiating element, a null is generated in a radiation pattern of the first radiating element.

Abstract: An antenna for a Radio-Frequency IDentification (RFID) system is disclosed that comprises a pair of resonant cavities. The antenna is realized by folding the ends of a ribbon of conductive material, such as metal foil, over the middle part of the ribbon. The antenna generates a higher voltage than prior-art antennas used in RFID systems, and it makes possible RFID systems with an improved range. In an alternative embodiment, the antenna comprises a reflector that enables the RFID system to better tolerate the presence of nearby metal objects.

Abstract: The invention provides a dipole antenna and mobile communication terminal. The dipole antenna comprises a first vibrator, a second vibrator, a feed terminal and a dielectric slab, the first vibrator and the second vibrator being provided anti-symmetrically on the dielectric slab, wherein the first vibrator comprises a first resonant ring configured to transmit and receive radio signals in a GSM900 band and a first antenna arm configured to transmit and receive radio signals in a DCS1800 band, the first antenna arm being connected to the first resonant ring; the second vibrator comprises a second resonant ring configured to transmit and receive radio signals in the GSM900 band and a second antenna arm configured to transmit and receive radio signals in the DCS1800 band, the second antenna arm being connected to the second resonant ring; the first antenna arm is connected to the second antenna arm through the feed terminal.

Abstract: A radiation antenna for wireless communication provides an advantage of being able to enhance gain and control directionality, while suppressing the height. The radiation antenna for wireless communication includes a line antenna element 10 and arm elements 20. The line antenna element 10 extends from a power feed section 15. The arm elements 20 are connected to a tip portion of the far side from the power feed section 15 to enhance the gain of the line antenna element 10 and control the directionality thereof. The electrical length from the power feed section 15 to the open end of the arm elements 20 by way of the line antenna element 10 is designed to resonate at a higher order mode of a target frequency.

Abstract: An antenna apparatus includes: a ground plane; a plurality of conductive elements arranged substantially in parallel to a surface of the ground plane; a plurality of linear elements configured to connect the conductive elements to the ground plane; and an antenna configured to radiate a radio wave, wherein a plurality of openings to reflect the radio wave radiated from the antenna are formed in the ground plane under an arrangement region of the conductive elements.

Abstract: An antenna system for use in an agricultural field or work area comprises a base having an upper side and a lower side opposite the upper side. A stake extends from the lower side. The stake is capable of mounting into the ground. A spring extends from the upper side of the base. A mast above the base is movably, resiliently mounted to the base by the spring. A lateral dielectric guard is mounted at or the near a top of the mast. An antenna is associated with the top of the mast, the antenna coupled to a transmission line that is secured to or by the mast.

Abstract: An unsymmetrical dipole antenna includes a grounding element, a radiating element, and a feed-in wire. The grounding element includes a first short side metal plane and a first long side metal plane. The radiating element includes a second short side metal plane and a second long side metal plane. The feed-in wire includes a metal wire, coupled to the second short side metal plane for transmitting a feed-in signal; an insulation layer, covering the metal wire; a metal weave, covering the insulation layer, having one terminal coupled to the first short side metal plane of the grounding element, and another terminal coupled to a system ground of the wireless communication device; and a protective layer, covering the metal weave. A size of the grounding element and a size of the radiating element are irrelative.

Abstract: The present invention provides a multi-system multi-band RFID antenna, which comprises an on-chip antenna and at least one external antenna, wherein the on-chip antenna is arranged on RFID chip; the external antennas are arranged outside the RFID chip; and the RFID chip is provided with connection pads on the outer surface, wherein both the on-chip antenna and the external antennas are connected with the RFID chip through the connection pads. According to the multi-system multi-band RFID antenna of the present invention, the RFID chip can provide appropriate antennas for applications in different systems with different frequency bands, and can satisfactorily meet the need for RFID multi-system integration applications in the future.

Abstract: An antenna and a communication device thereof are provided. The antenna includes at least one ground and at least one radiating portion. The ground is disposed on a dielectric substrate, and the radiating portion includes at least one signal source and at least one closed conductor loop. The closed conductor loop has a first coupling conductor portion and a second coupling conductor portion, and the closed conductor loop has a plurality of bending portions to form a three-dimensional structure, and a first coupling gap is formed between the first and the second coupling conductor portions. The closed conductor loop further has a feeding portion and a short-circuit portion to form a second coupling gap between them. The feeding portion is electrically connected or coupled to the at least one signal source, and the short-circuit portion is electrically connected or coupled to the ground.

Abstract: A compact antenna for transmitting or receiving a radio frequency signal includes a metal wire extending from a first location to a second location, an insulation layer extending from the first location to a third location, for covering a portion of the metal wire from the first location to the third location, a metal weave extending from the first location to a fourth location, for covering a portion of the insulation layer from the first location to the fourth location, and a grounding metal tube extending from a fifth location to the third location, for covering a portion of the metal weave from the fifth location to the fourth location, and covering a portion of the insulation layer from the fourth location to the third location.

Abstract: A high-frequency coupler is provided to include a resonator wherein an infinitesimal dipole is formed, the infinitesimal dipole including a line segment which connects the center of electric charge accumulated in the coupling electrode and the center of mirror-electric charge accumulated in the ground, and the high-frequency signal is transmitted to another high-frequency coupler at a communication partner side, which is placed opposite the high-frequency coupler so that the angle between the direction of the infinitesimal dipole and the direction from the high-frequency coupler toward the other high-frequency coupler is nearly zero.

Abstract: The present invention relates to a diversity antennas system comprising at least two antennas of the dipole type each formed by a first and a second conductive arm, supplied differentially wherein the two antennas comprise a common arm called first arm forming at least one cover for an electronic card and each one a second arm mounted in rotation at one extremity of the first arm.

Abstract: A multiband antenna is provided having a longitudinal ground plane and several linear arrays of radiating elements mounted on the ground plane. A first set of first radiating elements may be disposed lengthwise along a center of the ground plane. The first radiating elements may be dimensioned to operate in a first frequency band, such a frequency range of about 790-960 MHz. A second set of second radiating elements may also be disposed lengthwise along the center of the ground plane. The second radiating elements may be dimensioned to operate in a second frequency band, such as a frequency range of about 1710-2170 MHz. A third set of third radiating elements is disposed lengthwise on the ground plane on a first side of the first and second sets of radiating elements. The third radiating elements may be dimensioned to operate at a third frequency band, such as about 2.5-2.7 GHz and/or 3.4-3.8 GHz.

Abstract: According to one embodiment, a coupler includes a ground plane, a feed point connected to the ground plane, and an element having a unicursal-pattern. An electrical length of the element is not less than a wavelength corresponding to a central frequency of a desired frequency band, and is double the wavelength or less. The element includes a first segment disposed on a first plane, and a second segment disposed on the first plane or on a second plane which is opposed to the first plane with a gap and is parallel to the first plane, the second segment extending in parallel to the first segment. An electrical length of each of the first segment and the second segment is ½ of the wavelength or more, and is the wavelength or less.

Abstract: An antenna structure for receiving digital television broadcast signals includes a vase antenna housing having a generally hourglass shape with conically-shaped upper and lower segments joined together to define a narrower diameter middle portion. The antenna structure further includes a signal receiving antenna etched on the inner surface of the vase antenna housing. The signal receiving antenna conforms to the shape of the vase antenna housing and thereby exhibits an arcuate, partial hourglass shape. The signal receiving antenna may be a cloverleaf antenna or a spiral antenna.

Abstract: An antenna is provided. The antenna includes a signal line, a ground line, a first radiation element and a second radiation element. The first radiation element is electrically connected to the signal line. The first radiation element includes a first U-shaped section and a first extension section. The signal line is connected to an end of the first U-shaped section, and the first extension section is connected to the other end thereof. The first U-shaped section includes a first notch toward a first direction. The second radiation element is electrically connected to the ground line. The second radiation element includes a second U-shaped section and a second extension section. The ground line is connected to an end of the second U-shaped section, and the second extension section is connected to the other end thereof. The second U-shaped section includes a second notch toward the first direction.

Abstract: The invention relates to a dipole type wideband antenna comprising a substrate presenting two faces, a first conductive arm, a second conductive arm placed on the substrate, a feeder line supplying the second arm passing under the first arm, In this case, the feeder line extending by a line element placed under the second arm, this element being dimensioned to filter a given frequency.

Abstract: A portable whip antenna (100) is used to form a parallel wire transmission line (304) and support for a dipole antenna system (900). The portable whip antenna is formed of an elongated monopole radiating element (306) extending from a feed point (114, 202) comprising an RF connector, which can be connected directly to a portable radio transceiver (200). A first flexible conductor extends parallel to and spaced apart from the elongated monopole radiating element of the whip antenna to form the parallel wire transmission line. A first dipole element (512) is formed from a portion of the first flexible conductor extending from a link member in a first direction transverse to a length of the elongated monopole radiating element. A second dipole radiating element (516) is formed of an elongated length of a second flexible conductor (522) extending in a second direction transverse to the elongated monopole radiating element.

Abstract: A light weight stowable antenna lens array assembly is provided. In one embodiment, the invention relates to a stowable lens antenna array including at least one antenna pair including a transmit antenna on a first layered composite, a receive antenna on a second layered composite, a ground plane on a third layered composite, the ground plane being between and spaced apart from the transmit antenna and the receive antenna, and a balanced transmission line coupling the transmit antenna to the receive antenna, and an articulating structure attached to at least one of the first layered composite, the second layered composite and the third layered composite, the articulating structure having a collapsed configuration and an expanded configuration, wherein at least one of the first layered composite, the second layered composite and the third layered composite includes a polymeric film.

Abstract: A planar antenna with an isotropic radiation pattern is provided. The planar antenna includes a substrate, a dipole antenna, a microstrip line set, and a channel selection module. The dipole antenna is disposed on a first surface of the substrate, and the microstrip line set and the channel selection module are disposed on a second surface of the substrate. A first microstrip line and a second microstrip line of the microstrip line set are spirally extended along two opposite rotation trails on a vertical projection plane to form a high-frequency path with the dipole antenna. The planar antenna controls the on/off state of the channel selection module so that a low-frequency path is formed when the dipole antenna is connected to a first line and a second line. A plurality of channels having different operating frequencies is respectively generated within the high-frequency path and the low-frequency path.

Abstract: An electromagnetic band-gap structure includes a circuit board, a ground plane and a plurality of electromagnetic band-gap units. The circuit board includes a first side and a second surface, and the ground plane disposed on the first side. The plurality of electromagnetic band-gap units are located on both the first surface and the second surface and connected to each other along an edge of the ground plane. Every electromagnetic band-gap unit includes a first strip line, a second strip line and a via. The first strip line is located on the first side, including a first relative long strip line and a first relative short strip line connected to the ground. The second strip line is located on the second side. The second strip line is connected to the first strip line of the adjacent electromagnetic band-gap unit through the via.

Abstract: The invention relates to an antenna construction for an RFID chip for long ranges, which comprises a substrate, an antenna of conducting material supported by the substrate, and coupling means for coupling the antenna to a circuit. In accordance with the invention the antenna is a magnetic dipole, and the coupling means are formed by extensions of the antenna conductor.

Abstract: A wireless device comprising a plurality of chips may be operable to communicate wireless signals via a mesh network comprising a plurality of integrated directional antennas on the plurality of chips. Wireless signals may be communicated between the plurality of the chips and/or with devices external to the wireless device via the mesh network. Beam-formed wireless signals may be communicated via the plurality of integrated directional antennas. The plurality of chips may be integrated on a single package or on a plurality of packages, which may comprise one or more circuit boards. Wireless signals may be communicated with devices external to the single package via the mesh network. The directional antennas may comprise patch antennas and/or dipole antennas.

Abstract: The present invention is an antenna structure of a radio frequency identification system transponder, especially an antenna structure wherein an insulation layer and a foldback circuit, an opening of which faces toward a coupling part, are provided at corresponding positions of an antenna body which is provided with the coupling part. The foldback circuit is provided with a radio frequency integrated circuit, such that radio signals can be transmitted by induction by the foldback circuit and the coupling part. By this foldback circuit, an issue of directivity of the radio signals can be reduced, an effective read range of the radio signals can be increased, as well as a near field induction function and a far field induction function can be provided at a same time. Therefore, when manufacturing an RFID transponder, a production speed can be increased and production cost can be reduced.

Abstract: A wireless receiver including a dipole antenna and a circuit board, wherein high directivity characteristics can be acquired for wireless signals is provided. The wireless receiver includes a balanced feed antenna and a circuit board arranged in parallel to the longitudinal direction of the aforementioned balanced feed antenna. A conductive pattern formed on the aforementioned circuit board is composed of two or more partial patterns arranged with a gap interposed therebetween. The gap is formed at a position in between both ends of the aforementioned balanced feed antenna.

Abstract: An asymmetrical dipole antenna is provided. A radiation module and a ground module are formed by a metallic conductor and arranged at an interval on a substrate of the antenna, and the radiation module and the ground module, respectively, have a radiation base and a ground base. Two radiation arms and two ground arms are formed by extending from two ends of the two respective bases in opposite directions. The two radiation arms are orthogonal to the radiation base, and the second radiation arm is bent and extended toward the first radiation arm to form an arc opened toward the first radiation arm. The two ground arms are orthogonal to the ground base, and a hook is formed by extending and bending the second ground arm toward the first ground arm. A feeder unit connects the feed point and the ground point of the two bases.

Abstract: An antenna system for a Radio Frequency Identification (RFID) tag in one embodiment includes a base portion; at least one angled portion oriented to have a tangential angle of between about 1 degree and about 179 degrees from a plane of the base portion; and an antenna trace on the at least one angled portion. An antenna system for an RFID tag in another embodiment includes a base portion; at least one angled portion having at least two sections each oriented to have a tangential angle of between about 1 degree and about 179 degrees from a plane of the base portion, the two sections having different overall angles relative to the base portion; and an antenna trace on the at least one angled portion. Additional systems and methods are presented.

Abstract: An antenna comprises first and second radiating elements for connecting to a first and second potential levels respectively. The first and second potential levels are substantially different for generating an electrostatic field from the first and the second radiating elements. The antenna further comprises first and second field shaping structures for controlling field propagation in a first and second direction respectively. The first and second field shaping structures are interdisplaced for defining a field pathway while the first and second radiating elements are disposed adjacent to the first and second field shaping structures and along the field pathway for directing the electrostatic field in a propagation direction through a liquid medium. More specifically, the propagation direction is defined by the field pathway and substantially perpendicular to at least one of the first and second directions.

Abstract: The present invention relates to an integrated circuit package comprising at least one substrate, each substrate including at least one layer, at least one semiconductor die, at least one terminal, and an antenna located in the integrated circuit package, but not on said at least one semiconductor die. The conducting pattern comprises a curve having at least five sections or segments, at least three of the sections or segments being shorter than one-tenth of the longest free-space operating wavelength of the antenna, each of the five sections or segments forming a pair of angles with each adjacent segment or section, wherein the smaller angle of each of the four pairs of angles between sections or segments is less than 180° (i.e.

Abstract: Disclosed are an antenna superstrate and an antenna structure having the same. More specifically, it is possible to widen an impedance matching bandwidth and a radiation bandwidth of an antenna while maintaining a high antenna gain characteristic as it is as compared with a method of using an antenna superstrate in which cells are arranged periodically in the related art by breaking periodicity of cells arranged in the antenna superstrate.

Abstract: Disclosed is a dual-band dual-polarized antenna for a mobile communication base station, which includes: a reflection plate; a first radiation device module for transmitting and receiving two linear orthogonal polarizations for a first frequency band, the first radiation device module generally having a square shape, the first radiation device module including a plurality of dipoles arranged to form the square shape, each of the dipoles substantially having a transverse side and a vertical side; and a second radiation device module for a second frequency band which is arranged within the square shape of the first radiation device module, and includes a plurality of dipoles generally arranged to form a cross-shape.

Abstract: An integrated circuit (IC) antenna structure includes a micro-electromechanical (MEM) area, a feed point, and a transmission line. The micro-electromechanical (MEM) area includes a three-dimensional shape, wherein the three dimensional-shape provides an antenna structure. The feed point is coupled to provide an outbound radio frequency (RF) signal to the antenna structure for transmission and to receive an inbound RF signal from the antenna structure. The transmission line electrically coupled to the feed point.

Abstract: An antenna for receiving and/or transmitting radio frequency signals in a predetermined frequency band, the antenna comprising: a first antenna portion comprising at least one conducting loop about a first material having an initial permeability of at least 4; and a second antenna portion embedded within a second material having a dielectric constant of at least 4; wherein the first and second antenna portions are electrically coupled together so as to form a compound antenna having a size such that the diameter of the smallest sphere which encloses all of the first and second antenna portions of the compound antenna is less than 1/30 of the wavelength of the radio frequency signals at the centre of the predetermined frequency band.

Abstract: A balanced dipole antenna, comprising: a left dipole arm having a center end, a right dipole arm having a center end, a coaxial cable having an outer conductor and a single inner conductor and a top end electrically located between the center ends of the left and right dipole arms, a left stub coupling the left dipole arm and the coaxial cable, and a right stub coupling the right dipole arm and the coaxial cable, wherein the inner conductor of the coaxial cable is connected to one of the left and right dipole arms, and the outer conductor of the coaxial cable is connected to the other of the left and right dipole arms.

Abstract: The invention includes a first circuit board on which a plurality of first terminal sections is arranged, a high-frequency circuit arranged on the first circuit board and connected to at least one of the plurality of first terminal sections, a second circuit board on which is arranged a plurality of second terminal sections facing the plurality of first terminal sections, a first internal circuit arranged on the second circuit board and connected to at least one of the plurality of second terminal sections, and electrical continuity unit providing electrical continuity among the plurality of first terminal sections and the plurality of second terminal sections. At least two contiguous terminals of the plurality of first terminal sections and/or the plurality of second terminal sections including a terminal connected to the high-frequency circuit are connected via a capacitor and function as an antenna for wireless communication.

Abstract: A dipole antenna of the present invention is more compact and has a wider bandwidth as compared with a conventional dipole antenna. A dipole antenna (DP) includes antenna elements (E1) and (E2) on a single plane. (E1) includes a linear section (E1a) extending from an end of (E1) in a first direction, and a linear section (E1b) connected to (E1a) via a bending section (E1c), (E1b) extending from (E1c) in a direction opposite to the first direction. (E2) includes a linear section (E2a) extending from an end of (E2) in the direction opposite to the first direction, and a linear section (E2b) connected to (E2a) via a bending section (E2c), (E2b) extending from (E2c) in the first direction. (E1) and (E2) are such that (E1a) is provided between (E2a) and (E2b), and (E2a) is provided between (E1a) and (E1b).

Abstract: A dual polarized variable beam tilt antenna having a superior Sector Power Ratio (SPR). The antenna may have slant 45 degree dipole radiating elements including directors, and may be disposed on a plurality of tilted element trays to orient an antenna boresight downtilt. The directors may be disposed above or about the respective dipole radiating elements. The antenna has a beam front-to-side ratio exceeding 20 dB, a horizontal beam front-to-back ratio exceeding 40 dB, a high-roll off, and is operable over an expanded frequency range.

Abstract: A CPW fed planar log-periodic antenna is provided. The antenna includes: an upper substrate; a planar log-periodic antenna structure formed beneath the upper substrate; a CPW-fed structure formed on the upper substrate for feeding energy into the planar log-periodic antenna structure; a lower substrate disposed beneath the upper substrate; and a wire structure formed beneath the lower substrate. The antenna of the present invention features efficient reduction of cross polarized radiation and thereby enhancing the performance.

Abstract: A system and method for improved data transmission on a wireless link to a remote receiving node includes a communication device for converting packets to RF at a physical data rate, an antenna apparatus having a plurality of antenna configurations for transmitting the RF, and a processor for selecting the antenna configuration and the physical data rate based on whether the remote receiving node indicated reception of the data transmission. The processor may determine a table of success ratios for each antenna configuration and may rank each antenna configuration by the success ratio. The processor may transmit with an unused antenna configuration to probe the unused antenna configuration and update the table of success ratios. Similarly, the processor may maintain a table of effective user data rates, rank each physical data rate by the effective user data rate and probe unused physical data rates to update the table.

Abstract: The present invention relates to a compact wideband antenna of the dipole type comprising a first 1 and a second 2 conductive arm supplied differentially, one of the arms called first arm 1 forming at least one cover for an electronic card. Said type of antenna is connected to a portable electronic appliance such as a PC or similar device.

Abstract: A small-size wide-band antenna (103) includes a radiation element formed on a dielectric substrate (1) and a coaxial cable (2) as power supply unit for supplying dipole potential to the radiating element. The radiation element includes a ground potential unit to which ground potential is supplied via an external conductor (4) of the coaxial cable and an opposite-pole potential unit to which a potential forming a pair with the ground potential is supplied via a center conductor (3) of the coaxial cable. The ground potential unit includes a pair of conductors (13,14) formed in a tapered shape on the front and rear surfaces of the dielectric substrate and mutually capacitively coupled. The opposite-pole potential unit includes a pair of conductors (31,32) formed in a tapered shape on the front and rear surfaces of the dielectric substrate and mutually capacitively coupled. Each of the ground potential unit and opposite-pole potential unit has a power supply point at a tapered apex of the conductor (13,31).

Abstract: An antenna for realizing broadband and/or multi-band using branch members is disclosed. The antenna includes a reflection plate and a radiation device disposed on the reflection plate. Here, the radiation device includes a first feeding point and a first dipole member electrically connected to the first feeding point. At least one first branch member is formed to one side of the first dipole member, and one or more second branch member is formed to another side of the first dipole member.